package top.likeqc.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import top.likeqc.security.*;

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    LoginFailureHandler loginFailureHandler;

    @Autowired
    LoginSuccessHandler loginSuccessHandler;

    @Autowired
    CaptchaFilter captchaFilter;

    @Autowired
    JwtAuthenticationEntryPoint jwtAuthenticationEntryPoint;

    @Autowired
    JwtAccessDeniedHandler jwtAccessDeniedHandler;

    @Autowired
    UserDetailServiceImpl userDetailService;

    @Autowired
    JwtLogoutSuccessHandler jwtLogoutSuccessHandler;

    @Bean
    JwtAuthenticationFilter jwtAuthenticationFilter() throws Exception {
        AuthenticationManager authenticationManager = authenticationManager();
        JwtAuthenticationFilter jwtAuthenticationFilter = new JwtAuthenticationFilter(authenticationManager);
        return jwtAuthenticationFilter;
    }

    @Bean
    BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    private static final String[] URL_WHITELIST = {"/login", "/logout", "/captcha", "/favicon.ico"};

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.cors().and().csrf().disable()

            // 登录配置
            .formLogin()
            .successHandler(loginSuccessHandler)
            .failureHandler(loginFailureHandler)

            // 退出
            .and()
            .logout()
            .logoutSuccessHandler(jwtLogoutSuccessHandler)

            // 禁用session
            .and()
            .sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS)

            // 配置拦截规则
            .and()
            .authorizeRequests()
            .antMatchers(URL_WHITELIST).permitAll()
            .anyRequest().authenticated()

            // 异常处理器
            .and()
            .exceptionHandling()
            .authenticationEntryPoint(jwtAuthenticationEntryPoint)
            .accessDeniedHandler(jwtAccessDeniedHandler)

            // 配置自定义的过滤器
            .and()
            .addFilter(jwtAuthenticationFilter())
            .addFilterBefore(captchaFilter, UsernamePasswordAuthenticationFilter.class)
        ;
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailService);
    }


}
